The table shows hardness data for four mineral samples. Mohs Hardness Scale compares mineral hardness to everyday items. Mineral Hardness Data Mineral Sample Mineral Scratches Mohs Hardness Scale Fingernail Penny Iron Nail Fingernail 2.5 1 No No No Copper Penny 3.5 2 Yes Yes No Nail 4.0 3 Yes Yes Yes Glass 5.5 4 Yes No No Steel File 6.5 Based on the data, which mineral sample number has a hardness greater than 4.0?

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

Nonpoint source pollution is difficult to control because it

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )